Testimony will resume Monday in the trial for a man accused of killing his boss at Suburban Hospital. Maintenance worker Keith D. Little is charged with first-degree murder in the New Year’s Day stabbing death of 40-year-old Roosevelt Brockington Jr.

A Montgomery County forensic biologist is expected to testify about a glove found at the crime scene. But, in a crucial blow to the prosecution, Judge Marielsa Bernard ruled last week that the expert can’t testify that a stain on the glove is Brockington’s blood. Forensic tests have yielded conflicting results about whether the stain is blood.